diff options
| author | Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> | 2014-09-06 03:34:32 +0400 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2014-09-20 13:56:20 +0400 |
| commit | 938916fbb8e8cb67eacb784f4eda17e2950c16c5 (patch) | |
| tree | 28ab131f0585989aa17bb7390f279c7239404fca /drivers/i2c | |
| parent | c9a9ef4170b3db3044504cd5512d0bb19c6f23c7 (diff) | |
| download | linux-938916fbb8e8cb67eacb784f4eda17e2950c16c5.tar.xz | |
i2c: rcar: fix RCAR_IRQ_ACK_{RECV|SEND}
Bits 8-31 of all registers reflect the value of bits 0-7 on reads and should be
0 on writes, according to the manuals. RCAR_IRQ_ACK_{RECV|SEND} macros have all
1's in bits 8-31, thus going against the manuals, so fix them.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: stable@vger.kernel.org
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-rcar.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c index 1cc146cfc1f3..e506fcd3ca04 100644 --- a/drivers/i2c/busses/i2c-rcar.c +++ b/drivers/i2c/busses/i2c-rcar.c @@ -76,8 +76,8 @@ #define RCAR_IRQ_RECV (MNR | MAL | MST | MAT | MDR) #define RCAR_IRQ_STOP (MST) -#define RCAR_IRQ_ACK_SEND (~(MAT | MDE)) -#define RCAR_IRQ_ACK_RECV (~(MAT | MDR)) +#define RCAR_IRQ_ACK_SEND (~(MAT | MDE) & 0xFF) +#define RCAR_IRQ_ACK_RECV (~(MAT | MDR) & 0xFF) #define ID_LAST_MSG (1 << 0) #define ID_IOERROR (1 << 1) |